Atomizing device and electronic cigarette

Abstract

The present application discloses a heater and an aerosol generating device. The heater includes: a base, having an inner surface; an infrared electrothermal coatings, being disposed on the inner surface of the base; a conductive module, comprising a first conductive portion and a second conductive portion arranged on the base, both the first conductive portion and the second conductive portion being electrically connected with the infrared electrothermal coating; wherein each of the first conductive portion and the second conductive portion includes a conductive portion coating section arranged on the inner surface of the base and a conductive portion electrode section arranged on an outer surface of the base.

What is claimed is: 
     
       1. A heater, comprising:
 a base, having an inner surface and an outer surface, the inner surface defining a cavity for accommodating aerosol-forming matrix; 
 a first infrared electrothermal coating, being disposed on the inner surface of the base; the first infrared electrothermal coating being configured to generate infrared radiation to heat the aerosol-forming matrix so as to generate aerosol for smoking; 
 a conductive module, comprising a first conductive portion and a second conductive portion arranged on the base, both the first conductive portion and the second conductive portion being electrically connected with the first infrared electrothermal coating; 
 wherein each of the first conductive portion and the second conductive portion comprises a conductive portion coating section arranged on the inner surface of the base and a conductive portion electrode section arranged on the outer surface of the base. 
 
     
     
       2. The heater according to  claim 1 , wherein the first conductive portion and/or the second conductive portion further comprise a conductive portion connecting section electrically connecting the conductive portion coating section and the conductive portion electrode section. 
     
     
       3. The heater according to  claim 1 , wherein the heater further comprises a protective layer coated on the first infrared electrothermal coating and/or a protective structure arranged on the first infrared electrothermal coating to prevent the wear of the first infrared electrothermal coating. 
     
     
       4. The heater according to  claim 3 , wherein the protective structure is a bump or a spacer arranged on the inner surface of the base, such that a gap within 1 mm is provided between the first infrared electrothermal coating and the aerosol-forming matrix. 
     
     
       5. The heater according to  claim 3 , wherein the protective layer comprises at least one of a polytetrafluoroethylene layer and a glaze layer. 
     
     
       6. The heater according to  claim 1 , wherein the heater further comprises a reflective coating coated on the outer surface of the base and the reflective coating is configured to reflect infrared rays transmitted through the base. 
     
     
       7. The heater according to  claim 6 , wherein the reflective coating comprises at least one of metal and metal oxide. 
     
     
       8. The heater according to  claim 7 , wherein the thickness of the reflective coating is 0.3 μm to 200 μm. 
     
     
       9. The heater according to  claim 1 , wherein the first conductive portion and the second conductive portion are at least one of a conductive coating coated on an end of the base and a conductive piece sleeved on the end of the base. 
     
     
       10. The heater according to  claim 1 , wherein the heater further comprises a temperature acquisition module configured to acquire temperature data of the base. 
     
     
       11. The heater according to  claim 1 , wherein the heater further comprises a second infrared electrothermal coating provided on the outer surface of the base;
 both the first infrared electrothermal coating and the second infrared electrothermal coating are coupled between the first conductive portion and the second conductive portion, such that the first infrared electrothermal coating and the second infrared electrothermal coating are power supplied through the first conductive portion and the second conductive portion. 
 
     
     
       12. The heater according to  claim 11 , wherein the base has a first end and a second end opposite to each other;
 wherein the first conductive portion is provided to be electrically connected with the first infrared electrothermal coating at the inner surface of the base near the first end, and electrically connected with the second infrared electrothermal coating at the outer surface of the base near the first end; 
 the second conductive portion is provided to be electrically connected with the first infrared electrothermal coating at the inner surface of the base near the second end, and electrically connected with the second infrared electrothermal coating at the outer surface of the base near the second end. 
 
     
     
       13. The heater according to  claim 12 , wherein the first conductive portion comprises a first part provided on the inner surface of the base and a second part provided on the outer surface of the base;
 wherein the first part is electrically connected with the first infrared electrothermal coating; and 
 the second part is electrically connected with the second infrared electrothermal coating. 
 
     
     
       14. The heater according to  claim 13 , wherein the first conductive portion further comprises a third part formed at the first end of the base, and the first part, the second part and the third part are continuous and in electrical connection. 
     
     
       15. The heater according to  claim 11 , wherein the infrared rays radiated by the first infrared electrothermal coating and the infrared rays radiated by the second infrared electrothermal coating have different emission spectra. 
     
     
       16. The heater according to  claim 15 , wherein the emission spectrum of the infrared rays radiated by the first infrared electrothermal coating has a peak wavelength different from the emission spectrum of the infrared rays radiated by the second infrared electrothermal coating. 
     
     
       17. An aerosol generating device, comprising a heater;
 the heater comprising: 
 a base, having an inner surface and an outer surface, the inner surface defining a cavity for accommodating aerosol-forming matrix; 
 a first infrared electrothermal coating, being disposed on the inner surface of the base; the first infrared electrothermal coating being configured to generate infrared radiation to heat the aerosol-forming matrix so as to generate aerosol for smoking; 
 a conductive module, comprising a first conductive portion and a second conductive portion arranged on the base, both the first conductive portion and the second conductive portion being electrically connected with the first infrared electrothermal coating; 
 wherein each of the first conductive portion and the second conductive portion comprises a conductive portion coating section arranged on the inner surface of the base and a conductive portion electrode section arranged on the outer surface of the base.